Patent GB-460369-A (GB)
Title: Improvements in indicating and registering mechanisms particularly adapted for fluiddispensing apparatus
IPC: B67D7/08
Filed: 1935-06-24
Abstract: 460,369. Liquid-dispensing apparatus. WAYNE CO. June 24, 1935, No. 18093. Convention date, June 22, 1934. [Class 106 (i)] In apparatus with registering mechanism for indicating the quantity and total cost of commodity dispensed means is provided for visibly indicating the unit price, said means comprising two parts which, according to their respective settings to indicate units and fractions of a given coinage determine the effective ratio of related parts of a variable speed gear driving mechanism. In the embodiment shown a motor-operated pump is connected to the inlet pipe of a meter which when liquid is dispensed operates a shaft 30, Fig. 2, journalled in a casing 32 with gearing driving quantity indicating pointers 36, 38, and 40, 42, on opposite sides of the pump housing. The gearing operates a shaft 56 carrying at its upper end a bevel gear 60 and a worm gear 74. The gear 60, Figs. 2 and 3, is operatively connected through gearing 62, 66, 68 to a shaft 70 so that the shaft is rotated one revolution for each unit of liquid dispensed. The worm 74 meshes with a worm wheel 76 on a shaft 78 in a 1 to 50 ratio. On the shaft 70 is mounted a gear cone 80 and on the shaft 78 is a gear cone 88 ; these cones are operatively associated through mechanism with the tens and units and with the tenths wheels 82, 84, and 90 of a register adapted to indicate the unit price of the liquid. To set the register to the appropriate price units the units drum 84 is secured to a shaft 174, Fig. 11, with a setting knob 176, the tens drum 82 is secured to a sleeve 178 loose on the shaft 174 and is operatively connected by transfer mechanism comprising pinions 180, 181, 182, and 186 with the units wheel 84, so that the units and tens are set by manipulating the knob 176. The tenths drum 90 is secured to a hollow bush 188 with a setting knob 190. Movement of the shaft 174 is transmitted through a gear wheel 192 and pinion 194 to a screwed spindle 196, Fig. 4, which carries a threaded hub 200 that is displaced in accordance with the units and tens values. The hub 200 carries an arm 198, Fig. 2, provided with a gear train 92 comprising pinions 94, 96, 98 and is slidably mounted on a non-circular shaft 100 so that the setting movement brings the gear 94 into mesh with the appropriate one of the cone gears 80 the operation of which transmits the movement through the shaft 100 to a bevel gear 102, Fig. 6, forming one of the sun-wheels of a differential mechanism 103. The setting of the knob 190 is transmitted through a wheel 201 and pinion 202 to a screwed spindle 204 so as to adjust a gear train 114 with respect to the cone gear 88 in accordance with the tenths value. The selected gear 88 drives a non-circular shaft 118 and imparts movement to the other sunwheel 120 of the differential 103. The sum of these movements through the planet gears 105, 107 and an associated gear 106 is transmitted to a gear 108 on the shaft 110 of the total cost counter 112. This counter comprises three drums 130, 132, 134, Fig. 7, rotatably mounted on a hollow bush 136 ; the units counting wheel is driven by the engagement of a pawl 140 thereon with a ratchet wheel 138 secured to the shaft 110. To advance the higher drums a transfer mechanism of the deep notch type is provided. At transfer the pawl carrying frame 148 is moved forward against the action of a spring until the tail end 160 of the units pawl engages a fixed roller 162 so that the pawls are tripped to free them from the notches. The pawls are non-rotatably mounted on a shaft 146 pivoted in the frame 148. Access to the setting knobs 176, 190 is obtained by opening a locked door 238 pivoted on the outer casing 2. The act of opening the door disengages the train of gears 92, 114 from their respective cones. For this purpose the frames of the gears have arms 232, 236 extending into slots 230, 234 of sliding carriages 210, 212. The slots are parallel to the slope of the cone gears as shown in Fig. 4, and the carriages are connected by a pivoted cross-lever 222 so that when the door is opened a link 246, Fig. 3, pivoted thereon pulls the carriage 212 to the right and moves the carriage 210 to the left, thereby depressing the arms 232, 236, to disengage the gear trains. A duplicate set of drums is provided on the opposite side of the casing to show the set unit price and total cost. The shaft 174, and sleeve 188 of the unit price register are provided with sprocket gears 256, 252 connected by chains with the corresponding drums of the duplicate register. The shaft 110 of the total cost counter 112 is connected by bevel gearing and a shaft 262 to a similar counter 260. The means whereby the quantity indicating pointers are reset is effective also to zeroize the counters 112, 260 by rotating a spindle 292, Fig. 2, which drives, through a clutch 294, sleeves 276 operatively connected to the bush 136 rotation of which through a slot therein picks up pawls on the numeral drums which are restored to zero position being arrested by stop pawls. A grand totals counter may be provided to indicate the total cost of liquid dispensed.